kenyon



(No Model.) 8 Sheets-Sheet 1.

R. W. KBNYON.

VISE.

No. 157,353. Patented Aug. 11,1891.

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' R. W. KENYON.

VISE. No. 457,353. Patented Aug. 11, 1891.

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(No Model.) -3 Sheets8heet 3.

R. W. KENYYON. VISE.

No. 457,353, Patented Aug. 1.1, 1891 UNITED STATES PATENT OFFICE.

v RICHARD wALToN KENYON, OF ACCRINGTON, ENGLAND.

SPECIFICATION forming part of Letters Patent No. 457,353, dated August11, 1891.

Application filed March 16, 1891. Serial No. 386,207. (No model.)Patented in England March 20, 1890, No. 4,401.

To all whom it may concern:

Be it known that I, RICHARD WALTON KEN- YON, a subject of the Queen ofGreat Britain, residing at Accrington, in the county of Lancaster,England, have invented certain new and useful Improvements in Vises,(for which Letters Patent have been obtained in GreatBritain,No.et,atO1,bearingdateMarch20,1890,) of which the following is aspecification.

This invention relates chiefly to that class of vise known as a parallelvise, but may also, in part, be applied or adapted to benchvises of theordinary type, and is designed with the object of providing a-vise withone or both jaws capable of swiveling or turning about a vertical axis.

It consists, essentially, in constructing the vise with one jaw(preferably the front jaw) pivoted at or near the base in asupportingslide or base-plate, with a central elongated or slotted holethrough which the tighteningscrew passes, and having a supporting pieceor bracket against which the tighteningscrew engages, and a pin, finger,or catch to retain the jaw in a square or straight position whenrequired. It will be fully described with reference to the accompanyingdrawings, in which, as an example, is shown a paralielvise with one jawmade to turn orswivel.

Figure 1 is a side elevation ,Fig. 2, an end ele- Vation; Fig. 8, aplan; Fig. 4, a sectional elevation; Fig. 5, a transverse sectionalelevation of swiveling jaw; Fig. 6, a plan of base-plate and slidingbar, with jaws removed; Fig. 7, a sectional elevation showing theinvention applied to the back jaw.

In Figs. 1 to 6 the back jawA of the vise is constructed of ordinaryform with a bracket or base-plate B, by which it is affixed to thebench, and with the usual holes or openings 0 and (I, through one ofwhich the tighteningscrew 0 passes and through the other the sliding barD, which carries or supports the front jaw E. The bar D is preferably ofL shape and is provided in its lower member with a socket d to receive apin or pivot e on the bottom of the jaw E, and the other member standsup against the back of the jaw E and supports it.

The top part of the jaw E is made of the ordinary shape, and upon itslower end is formed a pivot or stud e, which fits into the socket d inthe sliding bar D. Theback of the jaw E where it comes in contact withthe sliding bar D is turned or formed to the arc of a circle and fittedto rest against the upper member of the bar. It is also provided with alug or tongue 6, which fits into a groove formed in the upright part ofthe bar D. By this means the greater part of the strain is thrown uponthe sliding bar, which is preferably made of steel. Instead of thesocket d beingfo'rmed in the sliding bar D and the pivot 6 upon themovable jaw E,the socket may be formed in the;jaw and the pivot upon thebar, and similarly the tongue e may be formed on the arm D to fit. intoa' groove in the jaw. 7

The tightening-screw 0 passes through the upright member of the slidingbar D and through the pivoted or swiveling jaw E into the hole 0 in thefixed jaw A. To the back of the fixed jaw is attached a screwed-sleeveor nut a, with which the threads of the screw 0 engage. The spindle ofthe screw 0 has a close fit in the hole 0? in the bar D, and is heldtherein by a pin or screw F in a groove f; but in the hole 0" in themovable jaw E the spindle passes loosely through, the hole being made ofoval shape toward the back jaw.

turning-of the screw moves it either in or out, the jaw E being carriedwith it.

The barD may, it desired,be made straight or fiat, in which case thesocket in which the jaw is pivoted is placed near the end or with-' in ashort distance thereof, and the head,'or preferably a collar placed.upon the spindle of the tightening-screw, bears directly against theback of the jaw, the collar being formed concave on that side tocorrespond with the curved or convex surface at the back of the aw.

The pivoted jaw is provided with a pin or catch which engages with aslot or hole in the sliding bar to retain the jaw, when required, squareor parallel with the fixed jaw. The form I prefer is a pivoted catch G,which falls into a slot or groove g, cut in the pivoted jaw E, and asimilar groove g, cut in the sliding bar D, through a lug in each, witha pin-hole through which a pin is passed or a catch pivoted at or nearthe top of the jaw, which will engage with a lug on the sliding bar or acatch on the top of the bar engaging with the jaw, or other similararrangement may be employed.

In Fig. 7 (which is a longitudinal sectional elevation) the invention isshown applied to the back jaw of a vise. In this case the jaw A isprovided with a pivot a, which fits into a socket b in the base-plate Bin a manner similar to that already described with reference to theother-jaw, and the sliding bar D and the jaw E will be made in one piecein the ordinary way. The tightening-screw 0 passes through the center ofthe jaw, and the nut a to receive the tighteningscrew may bear againstthe back of the jaw A; but it is preferably formed as part of or is madeto bear against an upright fixed bracket B, with which the jaw comes incontact in the manner herein shown with reference to the jaw E andupright member of bar D.

In an ordinary bench-vise with hinged front jaw the back jaw may becaused to swivel and be fitted to a base-plate, as above described withreference to Fig. 7.

By constructing Vises as described with a swiveling jaw a tapered orinclined piece of work can be firmly gripped therein, with equalpressure extending throughout the length of the jaws,-while at the sametime no undue strain or pressure is put upon the pivot or socket onwhich the jaw swivels.

What I claim as my invention, and desire to secure by Letters Patent, is

1. A vise having one jaw pivoted at or near the bottom in asupporting-plate, with an elongated or slotted hole through which thetightening-screw passes, the pivoted jaw be ing supported above itspivot by the tightening-scr-ew, or by a bracket against which the screwbears, substantially as described.

2. A parallel vise having a fixed jaw A and base-plate B, a sliding barD, with or without the upright supporting member which carries thesecond jaw, and a jaw E, through which the tightening-screw passes,pivoted thereto by pivot e in a socket d, substantially as described.

3. In a vise, the combination, with a fixed jaw and a pivoted jaw, ofthe base-plate B and sliding barD, substantially as described, 4. In avice, the combination, with the fixed jawA and base-plate B, of themovable jaw E, with a pivot below the tighteningscrew, and the slidingbar D, provided with a socket into which the pivot of the movable jawfits, substantially as described.

5. A vise provided with two jaws, one of which is pivoted and capable ofturning about its vertical axis, thepivot being placed below thetightening-screw, substantially as described.

6. A swiveling vise-jaw formed with a central hole through which thetightening-screw passes, and a pivot at its lower edge below thetightening-screw, substantially as described.

7. A swiveling vise-jaw formed with a central hole beveled out at theback to an oval form to allow of the jaw moving about its vertical axiswithout removing the screw, substantially as described.

8. In a vise, the combination, with the baseplate B and jaw A, of thescrewed sleeve a, substantially as described.

9. In a vise, the combination, with the baseplate B, sliding bar D, andsliding jaw E, of the pivoted jaw A, pivot a, socket b, and uprightfixed bracket B, substantially as described.

10. In a vise, the combination, with the fixed jaw A, base-plate B, andscrewed sleeve a, of the jaw E, with pivot at its lower end, sliding barD, tightening-screw O, and set-screw or pin F.

11. In a vise, the combination, with the pivoted jaw, of the catch G,substantially as described.

12. In a vise, the combination, with the sliding bar D, provided with asocket, of the jaw E, with a pivot at its lower end, and the pivotedcatch G, substantially as described. 1 13. A swiveling vise-jaw formedwith acentral hole 0 to receive the tightening-screw, a pivot e on thebottom, upon which it turns about its vertical axis, and atongue e atthe back, which slides in a groove and by which it is supported,substantially as described.

14. In a vise, the combination of a fast jaw, a loose jaw swiveling on apivot below the tightening-screw, a base-plate, a sliding bar to carryone jaw backward and forward, and a ti ghtening-screw,substantially asdescribed. In testimony whereof I have signed my name to thisspecification in the presence of two subscribing witnesses.

RICHARD WALTON KENYON.- Witnesses:

J. OWDEN OBRIEN, CHAs. OVENDALE.

